Section 6-77-39 - Design of copper pipe(a) Copper pipe used in mains must have a minimum wall thickness of 0.065 inch and must be hard drawn.(b) Copper pipe used in service lines must have wall thickness not less than that indicated in the following table: _________________________________
| | Wall thickness (inch) |
| Standard size (inch) | | |Nominal O.D. (inch) | | Nominal | | Tolerance | |
| 2 | | .625 | | .040 | | .0035 |
| 5/8 | | .750 | | .042 | | .0035 |
| 3/4 | | .875 | | .045 | | .004 |
| 1 | | 1.125 | | .050 | | .004 |
| 1-1/4 | | 1.375 | | .055 | | .0045 |
| 1-1/2 | | 1.625 | | .060 | | .0045 |
| I | I | I | |
(c) Copper pipe used in mains and service lines may not be used at pressures in excess of 100 p.s.i.g.(d) Copper pipe that does not have an internal corrosion resistant lining may not be used to carry gas that has an average hydrogen sulfide content of more than 0.3 grains per 100 standard cubic feet of gas.[Eff ] (Auth: HRS § 269-6) (Imp: 49C.F.R. §192.125, OCT 1, 1990)